From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Thompson, David" <dthompson2@worcester.edu>
Subject: Re: guix environment & PS1
Date: Thu, 25 Jun 2015 09:02:15 -0400
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To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>

On Thu, Jun 25, 2015 at 7:45 AM, Ludovic Court=C3=A8s <ludo@gnu.org> wrote:
> Cyril Roelandt <tipecaml@gmail.com> skribis:
>
>> +(define (run-shell shell env-name)
>> +  "Run the given SHELL, adding '(ENV-NAME) ' at the start of the prompt=
."
>> +  (cond ((string=3D? shell "/bin/bash")
>> +         (let* ((directory (or (getenv "TMPDIR") "/tmp"))
>> +                (template  (string-append directory "/guix-file.XXXXXX"=
))
>> +                (out       (mkstemp! template)))
>> +           (format out "export PS1=3D\"(~a) $PS1\"" env-name)
>> +           (flush-output-port out)
>> +           (system (string-append "/bin/bash --rcfile " template))))
>
> What about this simpler idea: =E2=80=98guix environment=E2=80=99 would un=
conditionally
> do:
>
>   (setenv "GUIX_ENVIRONMENT" "t")
>
> and then users can choose in their .bashrc to use a separate PS1 when
> GUIX_ENVIRONMENT is defined.
>
> WDYT?

+1

This is much better.

- Dave